Not nearly as dark as first single "Russian Roulette," the song -- which leans more toward a hip-hop feel than pop -- finds the Barbados native tapping into her island drawl.
"I pitch with a grenade / swing away if you're feeling brave / there's so much power in my name... I'm such a fragile lady / you don't have to be afraid," Rihanna twangs over a static thump and handclaps.
Rihanna's Def Jam Records label, did not return calls about whether "Wait Your Turn" is actually the second single from the album, which is set for a November 23 release.
Rihanna will appear on "Good Morning America" on Thursday and a special "20/20" episode on Friday, having kept largely silent about her showdown with Brown in Los Angeles. Brown pleaded guilty to felony assault, and was sentenced to probation and community labor.